def _main():
    day_dic = {
        1: "一",
        2: "二",
        3: "三",
        4: "四",
        5: "五",
        6: "六"
    }
    for x in range(0 + 1, 7):
        for y in range(x + 1, 7):
            for z in range(max(y, 5 - 1) + 1, 7):
                print(f"x 在周{day_dic[x]}， y 在周{day_dic[y]}， z 在周{day_dic[z]}")


if __name__ == "__main__":
    _main()
